develops from develops from artery primitive prosencephalic artery prosencephalic artery UBERON:2005049 ZFA:0005049 This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon PrA After the primitive prosencephalic artery forms it becomes disconnected from the cranial division of the internal carotid artery and instead it connects to the anterior mesencephalic central artery and the communicating vessels of the palatocerebral artery.